Hey

In Iceberg documentation, it mentions to use this for compaction
<https://iceberg.apache.org/spec/#snapshots>. I have a few questions on
compaction.

Is this (replace) referring to this RewriteFiles API
<https://iceberg.apache.org/javadoc/master/org/apache/iceberg/RewriteFiles.html>
?
If so, it looks like it only applies to the most recent snapshot of data?
Is there a way to compact data belonging to old snapshots? e.g., if I want
to rewrite data for older data with newer partition spec?

Thanks for the help in advance.

-- 
Chen Song

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